Allium cepa
Shallot, Tree onion
- Height × spread
- 0.9m × 0.4m
- Position
- Full sun
- Hardiness
- Mild winter to -5C (RHS H3)
- Flowers
- Summer
Availability
Please ask in store about availability
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
The slender, grassy leaves of <I>Allium cepa</I> form a clump from which arise huge, hollow stalks bearing rounded clusters of small white flower heads in early summer. This allium, not known in the wild, is used to flavour food having a taste that some consider a delight.
- Flower colour
- White
- Foliage colour
- Green
- Stem colour
- Green
- Variegated
- No
- Scent
- Yes
- Shape
- Round
- Height
- 0.9m
- Spread
- 0.4m
- Season of interest
- Summer
- Flowers in
- Summer
- Evergreen
- Deciduous
- Garden style
- Small scale garden, Scented garden, Mediterranean garden, Herb garden
- Sun or shade
- Likes full sun
- Soil type
- Loam (normal), Poor soil
- Soil pH
- All types
- Drainage
- Well drained soil
- Hardiness
- Mild winter to -5C (RHS H3)
- Borders & containers
- Borders
- Use for
- Ground cover, Deer resistant, Rabbit resistant, Bee attraction, Butterfly attraction
- Hazards
- No
Spring
Spring - late · Outdoors
Feed with slow release fertiliser
Apply a general purpose slow release fertiliser, spreading it around the root area of the plant as it is coming into growth. (Or apply a liquid feed at regular intervals throughout the growing season.)
This is a simple way to provide a nutrient boost as a single annual procedure.
Spring-Autumn · Outdoors
Water during dry periods
For plants in the ground, when there has been little or no rain for a period of 7-10 days and the soil is dry, give it a deep watering and repeat weekly until there is a downpour of rain. Check plants in pots more frequently, especially in hot weather.
Spring - early-mid · Planting
Divide when too large
The plant can be divided if it becomes too large or another plant is required. This may involve physically dividing the clump in two, removing offsets or small bulbs or dividing rhizomes. The new plants can be grown in pots or planted in the ground.
Found in
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